One vertex per element, one color per generator, with an edge from x to x·s.
(2,4)(5,6)(7,11)(8,9)(10,12)(14,17)(15,19)(21,22,26,27)(23,31,34,28)(24,29,30,25)(32,33,35,36)(5,7,10,8)(6,11,12,9)(15,19)(18,20)(22,27)(25,29)(28,31)(33,36)(6,12)(7,8)(13,14,16,17)(15,18,19,20)(21,23)(22,28)(24,35)(25,36)(26,34)(27,31)(29,33)(30,32)(1,2)(3,4)(5,8,10,7)(6,11,12,9)(13,14)(15,18)(16,17)(19,20)(21,24)(22,29)(23,32)(25,27)(26,30)(28,36)(31,33)(34,35)(5,9,10,11)(6,7,12,8)(13,15)(14,18)(16,19)(17,20)(21,25,26,29)(22,30,27,24)(23,33,34,36)(28,35,31,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.